Flexible coupling



Feb. 17, 1931. w. s. WEIR ETAL 1,193,347

FLEXIBLE COUPLING Filed Jan. 20, 12528 7 l lll ll llllllll I IIIIIIIIIIIIIIIIIII'II M'ZliafiS/mrpe ilez'r fllert Paul [blag WITNESS: ATTORNEY Patented Feb. 17, 1931'- UNITED-STATES PAEN'F oFeE WILLIAM SHARPE WEIR AND ALBERT PAUL FOLEY, OF PITTSBURGH, PENNSYLVANIA FLEXIBLE COUPLING Application filed January 20, 1928. Serial No. 248,221.

This invention relates to a flexible coupling, the general object of the invention being to provide resilient material between two parts to permit relative movement between the parts, with means for completely enclosing the resilient material to prevent injury to the same from wear of a moving part and features of construction and in the combination and arrangement of the several parts, to

I parts constituting the invention.

from contact with*oil, grease and the like.

The present invention is an improvement over our prior Patent No. 1,596,327, of August '17, 1926. I

This invention also consists in certain other he hereinafter fully described, illustrated in .the accompanying drawings and specifically pointed out in the appended claim.

In describing our invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which:----

Figure 1 is a view partly in section, showirig the invention in use on' a flexible coup ing.

Figure 2 is a sectional view through the Figure 3 is a. transverse sectional view through Figure 2.. v 4 t Figure 4 is a-view similar to Figure 2, but showing a modification.

Figure 5 is a view's'iahilar toFigure 2, but showing a. further modification. Figure-6 is a view of thelocking ring used in Figure 5.- v

In'these views,. the numeral 1 indicates a casing preferably formedof brass and havingan opening2 at each'endthereof. Thenu Q meral 3indicates a spool-sha ed bushing ar- 49 ranged in the casing with its ore registering- 4 [with the openings 2 and'with its-flanges overlappingithe ends of the casing,.s aid flangesengaging the inner faces of said ends. A

sleeve 4 of rubber or other resilient material, surrounds the spool-shaped bushing and has its outer circumference 'en' aging the inner wall of the casing. In or er to-permit the bushing and sleeve to be placedin the casing,

- one end'of the casing is made removable, as shown at 5. This end may beheld in place with large holes to receive the by internally grooving the end of the casing in which it fits and then bending over the metal at this end ofdzhe casing, as shown at 6, or this end may be held in place by a split ring 7, as shown in Figure 5, the removable end5 bearing against an internal shoulder formed .in one end of the casing 1 and the ring fitting in a groove formed in said end, the ring bearmg against the ends so as to hold said.

end in place.

Figure 4 shows a slight modification in which the bushing is composed of two secsecured to their adjacent etc., and wherever resilient material is used I to permit relative movement between two parts.

As will be seen, the rubber or resilient material is entirely enclosed by the bushing and the casing so that it cannot be damaged by oil, grease and other foreign material and it is also protected against wear by the parts with which the device is used. lt is thought 'fromthe foregoing description, that the advantages and novel features of our invention will be readily apparent.

- *It is. to be understood that we may 'make 'ch ang es in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claim. v What we claim is A device of the class described comprising a casing having an inwardly extending flange at each end thereof, the flangesforming circularopening's at the ends of the casing, a-

spool-shaped bushing within the'casing, a sleevejof resilient material carried by the bushing and bearing against the inner circumference of the casing, the flanges of the bushing overlapping the flanges of the casing whereby the sleeve is entirely enclosed by the bushing and casing and oil, grease and the like cannot reach the same.

In testimony whereof we aflix our signatures.

WILLIAM SHARPE WEIR. ALBERT PAUL FOLEY. 

